REFERENCE LIBRARI.

30 MAY 1970

CITY HALL

育教 儒 頁一第張四第日六廿月四年戌庚

WAH KIU YAT PO.

甄白橘茶

六期星日十三月五年〇七九一公年九十五國民華中

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英中會考物理科試題

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SECTI

A GENERAL PHYSICS

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英中會考歷史科答案

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堅道英文書院撰答·

stance of obiect

mirror in em

Suggested Answer

"H.K Certificate of Education Examination (English)

HISTOR

Give an "acoount of political, social and econom conditions in China at the beginning of the

nineteenth century.

marjane: 1. Introduction.

2. Political condition

Social scene

Economic condition Conclusion.

At the beginning of the nineteenth century Ching seemed to enjoy an everlasting peace áng” serenity as her influence was felt in the whole of Asia and the European powers were forbidden to enter China. Up to then, Ching had never been defeated by a foreign power. She had a continuous civilisation. of over three thousand years. The strength of the government made consolidated by Kang Hai and Chien Lung was still very formidable. But Ching China had passed the peak of its power by 18001 She was on decline and the coming century witnessed every signa of the last stage of China's dynastic cycle; internal rebellions and unrest, floods and famines, repeatedly defeated by foreign powers and, finally, revolution.

Emperor Chia Ching succeeded Chien Lung in 1796 and he found that the power of the Ch'ing government was teakening. The vigour and morals which were usually seen in the earlier emperora could never been found in Emperor Chia Ching or his successors, Ae usual, with a mediocore ruler on the Chinese throne the authority of the central government began to be challenged local high officials either carried out imperial instructions half-heartedly or did not obey orders, But this trend was not yet apparent because the prestige of the Ching was still high and the mandate of heaven was still held in the hands of the. Manchus. Corruption and bribery was not unusual in

a rare virtue amongst the officials especially those of lower rank. Administration began to disintegrate as there was no innovation introduced to replace obsolete administra- tive devices. If all these were not checked, the result would be one of confusion and chaos.

the official circle, Honesty H

However I there was one particular thing in th political soene: the rise of the status of Chinese officials. This rise was made possible by 1800 as most of the Manchu officials were incapable due to limited education, or laziness. The appointment of Chinese officials to high posts had far-reaching. consequences,

The social conditions of the Chinese at the begiming of the nineteenth century remained unchanged. Local gentry were still the most powerful class in the country. Merchants were still dispised. The literati was looked upon with respect. Intermarriage between the Chinese and the Marchus was. forbidden. But social unrest was becoming more and, nore frequent as time went on, for flood and famine were becoming numerous since local administration was not efficient. This social unrest was later developed into a large-scale uprising. This happenaa in middle of the century and it was termed as the Taiping Rebellion. Moreover, a new disturbing factor- was introduced into the already confusing social Beene: the coming of the missionaries supported by gunboats and diplomats. The peasants were irritated by most of the practices of the missionaries. Superstition and ignorance which were common of the Chinese peasants made the conflict between the missionaries and the peasants inevitable. This hostility towards the missionaries and their Chine et, converts was erupted in the Boxer Uprising of 1900.

By 1800, the economic conditions of China were far from satisfaction. Dependent wholly on agriculture, China's economy was unstable as many natural disasters such as flood or drought had not yet had any solution. The wat had offered many changes of trade and commerce to China, but all were refused. Having been refused, the west hit upon one solution which could balance their deficit: the importation of opium to China, The annual sum used to buy opium was tremendous; as a result, Chinees economy suffered greatly. Moreover, the habit of opiun-smoking of the Chinese presented many difficult problems to both China's economy and society.

There was great improvement in the technique of agriculture, but as the increase of population was so rapid that the increase in production could not be gorportional to the population increase. In consequence, poverty was common in most of the Chinese villages. The livlihood of the peasants was made more difficult by the heavy taxation.

China's economy was poor and this gave rise to many problems which the government was unable to solve. Thus Ching China was in decline, fa

The boginning of the nineteenth century saw in Chisa every sign of decline. The authority and prestige of the central government was waning, social unrest was frequent and the economy was being undermined by the importation of opium. All these factors made the fall of the Ch'ing dynasty inevitable.

(a) State the Principle of Archimedes Show how the principle applies to floating bodies.

(b) Given a spring bulance, cotton thread, brass weight, beaker of water and a beaker of in

unknown liquid, describe carefully how you would determine;

*(i) the specific gravity of the brass

the specific gravity of the liquid

In each rase use your own symbols, making their meaning clear, and show how you would use them to calculate each answer

(c) Anempty balloon weighs 2 kg. Attached to it is a cylinder which, when filled with 500 litres of

hydrogen at a pressure of 100" atmospheres, weighs 23 kg. The density of hydrogen, at atmospheric pressure is 0.1 gm per litre,

What is the weight of f hydrogen in the cylinder?

What is the weight Pty cylinder?.

Hydrogen is then passed from the cylinder into the balloon until it just rise carrying tha cylinder with it: the pressure of the hydrogen in the balloon is

density of air is 1-25 gm per litre

what is the volume of the balloon?

what is the weight of hydrogen in the balloon?.

what is the weight of the partly emptied cylinder?

(vi) What is the pressure of the nydrogen remaining in the cylinder

atmosphere and the

Define the terms "Mechanical Advantage and "Velocity Ratio" and show how the definition of

Efficiency it related to these terms,

21 cm

ww

A screw-vice, as shown, is used to compress a spring placed between its jaws. The screw advances O-5 cm for each revolution of the handle. If the efficiency of this machine is only 25%, find the force exerted at the *--*

vannyhan a fewow of 1·les ut ik exerted at the end of the handle. (Take

When the handle has been turned so that the force between the jaws is 85 kg wt, it is found that

further two revolutions of the handle increases the forch to 105 kg wt. How many turis mat the screw now be rotated in the opposite direction before the spring falls out of the jawe?

N.B. The elastic mrt of the spring is not exceeded,

SECT

HEA

Brierly explain now you would use the apparatus illustrated to find a value for the mechanical equivalent of heat K The walls are of clear glass so that the themometer may be tead to 01° C. You are told that be specific heat of the mercury is 5, the thermal capacity of the inner glass tube is cal Cand the effective length of the tube is some You must assume that this tube always atlains the same temperature as the mrcioy.

List. all the readings you would take, and show how a value for could becalculated. from them, making it clear what units you are using.

Insulating padi

thin glass walls

thermometer fixed in tube

Mgm mercury

Mention two factors which affect the boiling point of a liquid. Say in each case in which way the boiling point is affected.

A copper kettle weighing 500 gr contains 450 ps of water at 40 C When put on agas Stove it takes unstes to come tu the boil. Huw much lunger would it take the water tuboil away completely?

(Specife heat of copper01 fatent feat of vaporization of water = 540 cal/gm

Suggest one reason why the calculated answer is likely to be too small.

LIGHT AND SOUND" »

(Describe a simple experiment to find the Focal length of a concave mirror, using org

exploring pin,

(i) Draw a simple may diagram to show how a concave mirror can form a real magnified

amigo.

WELVE EN Rcount or Japan's relations wit♬ Calna between 1911 and 1922.

Outline: 1. Introduction

2. Japan's policy towards China from

1900 to 1910

3. Japan's policy towards China from

1911 to 1915

4. Japan a relations with China durire

1918 to 1922.

5. Conclusion

During the latter part of the 19th century, Japan had successfully strengthened and modernised herself, China was the major concern in her foreign relations, After the Sino-Japanese War she had obtained considerable influence in China. "Some Japanese wanted to establish friendship with China,

SEC

The graph plots image distance against corresponding object-distance from a concave mitior

Find from the graph the focal length of the minor making your method clear, (u)Describe the type of image represented by the tine.AB.

(i) Describe the type of image represented by the line

A small bright electric light bulb is lowered 300 em below the surface of a cloudy liquid, Calculate the diameter of the circular pool of light seen on the surface of the quid given that, The refractive Index for the liquid is 1-4147

ELECTRICITY AND MAGNETISM

. State Faraday's two laws of electrolys

silver electrodes

peratur lled with vidulated

-platinica

electrode

-silver nitri

The apparatus illustrated can be used to give an approximate demonstration of the truth of Faraday's second law for the elements silver, oxygen and hydrogen. Assuming that you are given the densities of the gases under the conditions of the experiment, list all the readings you would make, and say what other information you would need in order to attempt to verify the law

N.B. There is no need to describe the experiment,

(i) State four important reasons why the readings taken with this apparatus are palikely to

give an accurate verification of the law for hydrogen; oxygen and stiver,

A Daniel Cell is used to deliver a current of 2 amperes. for severi minutes. If it has an average. Internal resistance of one ofan, assuming no local action takes place, find;

the energy in calories dissipated within the cell

the change in weight of the copper electrode, i

(i) any change of weight taking place in the liquid in the cell

(Mechanical equivalent of heat = 42 joules/cal;

electrochemical equivalent Cu=0-00033 gu/cövləṁb;

electrochemical equivalent Zn30-00034 gm/coulomb),

(a) What is the main reason that a moving coil galvanometer is not suitable for use

"without modification?

In what way must the instrument be converted for use as

an ammeter?

(ii) a voltmeter2.

State In a few words the reason for each modification you make.

A resistance wire Rus ansistance of 4 ohms. Find the new resistance of the wire if;

the length of Ris doubled;

the cross sectional area of R is doubled"

an ammeter

"A three voll battery of negligible internal resistance is connected to a wire AB 1 metre long, of resistance 42, A 662 resistance is connected to points and Cas shown in the diagram. Point“. Cis-75 cm fromẠ.

Find the current in each part of the circuit.

() Resistance R is now replaced by a cell of EMF 2:25 volts and negligible internst jesistance, with its positive cerminal connected to A. Explain what now occurs, and calculate any." current flowing..

"the majority however, wanted to expand into China

and control her resources. At the beginning of the 20th century, her success over China further encouraged her to expand at the expanse of Chika. Ás result, Sino-Japanese relations during this period was mainly one of hostility.

In 1900, during the Bozer Uprising in China, Japan dispatched a large number of troops in the Allied Expedition to Feking. Her policy was to safeguard her interests in

Chira in

in whatever settlement reached between China and the Powers. Further, if partition should arise, she must see to that she could obtain a large share. Alarmed by the Russian ambition and expansion in Manchuria, Japan. was ready to join hands with the United States in upholding the Open Door Principle to preserve China' integrity and independence.

《未完轉入第四張第四

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